condition mean min max ZT0-3 7.324566666666666e-07 0.0 1.4649133333333332e-06 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 1.8812e-07 0.0 3.7624e-07 ZT16-19 7.8319e-07 7.8319e-07 7.8319e-07 ZT20-23 0.0 0.0 0.0